BCX38CSTOA Equivalent & Substitute Parts

Part Overview

The BCX38CSTOA is a Bipolar (BJT) Transistor NPN - Darlington configuration rated for 60 V collector-emitter breakdown voltage and 800 mA maximum collector current. This component is packaged in an E-Line-3 (TO-92 compatible) through-hole configuration with a maximum power dissipation of 1 W. The BCX38CSTOA is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

BCX38CSTOA

Diodes IncorporatedIn Stock: 803BCX38CSTOA Datasheet

Current PartRFQ

BCX38CSTZ

Diodes IncorporatedIn Stock: 2079BCX38CSTZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BCX38CSTOA is determined by electrical and mechanical parameter equivalence. The substitute part must satisfy the following criteria:

Electrical Parameters (Critical for Substitution):

• Transistor Type: NPN - Darlington configuration
• Maximum Collector Current (Ic): 800 mA
• Maximum Collector-Emitter Breakdown Voltage: 60 V
• Vce Saturation characteristics: 1.25V @ 8mA, 800mA
• Collector Cutoff Current (ICBO): 100nA
• DC Current Gain (hFE): 10000 minimum @ 500mA, 5V
• Maximum Power Dissipation: 1 W
• Operating Temperature Range: -55°C ~ 200°C (TJ)

Mechanical Parameters (Critical for Substitution):

• Mounting Type: Through Hole
• Package / Case: E-Line-3
• Supplier Device Package: E-Line (TO-92 compatible)

Compliance Parameters:

• RoHS3 Compliance
• REACH Unaffected status
• Moisture Sensitivity Level 1 (Unlimited)

The BCX38CSTZ meets all electrical and mechanical substitution criteria and is manufactured by the same supplier (Diodes Incorporated) under the same base product number (BCX38).

Parameter Comparison

Engineering Selection Recommendations

The BCX38CSTZ is a direct electrical and mechanical equivalent to the BCX38CSTOA. Both components share identical electrical specifications, including collector current rating, breakdown voltage, saturation characteristics, current gain, and power dissipation. Both are manufactured by Diodes Incorporated under the same base product number (BCX38) and are packaged in the E-Line-3 (TO-92 compatible) through-hole configuration.

The primary distinction between these parts is product status and packaging format. The BCX38CSTOA is classified as obsolete, while the BCX38CSTZ maintains active product status. The BCX38CSTZ is supplied in Cut Tape (CT) packaging format, whereas the BCX38CSTOA was supplied in bulk packaging. Both components satisfy ROHS3 compliance requirements and maintain identical moisture sensitivity and REACH compliance status.

For applications requiring the BCX38CSTOA, the BCX38CSTZ provides full electrical and mechanical compatibility with the added benefit of active product availability and ongoing manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the BCX38CSTZ be used as a direct replacement for the BCX38CSTOA?

A: Yes. The BCX38CSTZ is electrically and mechanically equivalent to the BCX38CSTOA. All electrical parameters, including collector current, breakdown voltage, saturation characteristics, current gain, and power dissipation are identical. Both components use the same E-Line-3 (TO-92 compatible) through-hole package configuration.

Q: What is the difference between the BCX38CSTOA and BCX38CSTZ?

A: The primary differences are product status and packaging format. The BCX38CSTOA is obsolete, while the BCX38CSTZ is an active product. The BCX38CSTZ is supplied in Cut Tape (CT) packaging, whereas the BCX38CSTOA was supplied in bulk format. Electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the BCX38CSTOA and BCX38CSTZ are ROHS3 compliant, REACH unaffected, and maintain Moisture Sensitivity Level 1 (Unlimited). Compliance status is identical between the two parts.

Q: Is the E-Line-3 package compatible with TO-92 footprints?

A: Yes. Both the BCX38CSTOA and BCX38CSTZ are specified as E-Line (TO-92 compatible) packages. The E-Line-3 package designation indicates compatibility with standard TO-92 through-hole PCB layouts and footprints.

Q: Why is the BCX38CSTOA listed as obsolete?

A: The BCX38CSTOA has been discontinued by the manufacturer. The BCX38CSTZ serves as the active replacement product with identical electrical and mechanical specifications.

Q: Can I use the BCX38CSTZ in existing designs that specify the BCX38CSTOA?

A: Yes. The BCX38CSTZ is a direct substitute for the BCX38CSTOA in all electrical and mechanical aspects. No design modifications are required. The only consideration is packaging format; the BCX38CSTZ is supplied in Cut Tape (CT) format rather than bulk.

Q: What is the operating temperature range for these transistors?

A: Both the BCX38CSTOA and BCX38CSTZ operate across a junction temperature range of -55°C to 200°C (TJ).

Q: What is the maximum collector current rating?

A: Both parts are rated for a maximum collector current (Ic) of 800 mA.

Q: What is the maximum collector-emitter breakdown voltage?

A: Both parts are rated for a maximum collector-emitter breakdown voltage of 60 V.